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Trigger Source - Tenma 72-7630 Instructions Manual

4 channel digital storage oscilloscope

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Auto Setup
Auto setup simplifies the operation. Press AUTO and the oscilloscope can
automatically adjust the vertical deflection factor and horizontal time base range
according to the amplitude and frequency of the waveform, and also ensure a
stable display of the waveform.
When the oscilloscope is in auto mode the setup is as follows:
Functions Menu
Acquisition mode
Display format
Horizontal position
SEC/DIV
Trigger coupling
Trigger holdoff
Trigger level
Trigger mode

Trigger source

Trigger inclination
Trigger type
Vertical bandwidth
VOLT/DIV
Menu Display ON/OFF
To display or hide the current menu. With the menu ON/OFF key you can display or
hide the menu currently on screen but help messages are not displayed.
Multimeter measurement
Operation instructions : Open the multimeter function menu by pressing the [DMM]
(Digital Multimeter) button.
Notes: If it is necessary to test electric current, follow these steps:
Insert the current/voltage converter module that comes with the oscilloscope into
the digital multimeter port, and move the switch of the current/voltage converter so
that it is consistent with the selected DMM current. Proceed with testing.
Functions Menu
Function
Mode
Win shift
Normal
Set to YT
Automatically adjusted
Adjust according to signal frequency
DC
Minimum value
Set at 50%
Auto
Automatically adjusted
Rising
Edge
Full
Adjust according to amplitude of the signal
Setup
ON/OFF
DMM functions on/off
Voltage
Activate the voltage measurement function. Maximum
measurement value for DC or AC voltage is 400V.
Resistance
Activate the resistance measurement function. Maximum
measurement value for resistance is 40M
ON/OFF
Activate the on/off measurement function. When on/off
measuring is lower than 70 the beeper will sound
Diode
Activate the diode measurement function. Connect the
positive pole to the red test lead, and the negative pole to
the black test lead
DC current
Current range: 4mA, 40mA, 400mA, 4A
Set the horizontal or vertical shift of the window
Setup
Notes
25

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